| abstract |
The present invention relates to a powder composition comprising particles of a) alkali metal tungsten bronze, b) tungsten oxide, and c) tungsten metal, a method for producing said powder composition, and laser welding for thermal insulation or plastics. NIR curing of coating, drying of printing ink, fixing of ink toner to substrate, heating of plastic preform, increasing the amount of near infrared heat input in a process selected from laser marking of plastic or paper, It relates to the use of said powder composition in the form of a dispersion in a polymer material or article. |